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Finding the Fourth Proportional to 453,702.66, 626,072.43 and 262,728.42

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Solution

The fourth proportional to 453,702.66, 626,072.43 and 262,728.42 is: 362,543.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,702.66 : 626,072.43 = 262,728.42 : x
  2. Step 2: Convert to fraction form
    453,702.66/626,072.43 = 262,728.42/x
  3. Step 3: Cross multiply
    453,702.66x = 626,072.43 × 262,728.42
  4. Step 4: Simplify right side
    453,702.66x = 164,487,020,339.46
  5. Step 5: Solve for x
    x = 164,487,020,339.46/453,702.66
  6. Step 6: Final answer
    x = 362,543.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.